Question

Let f(x)=(1)/(x−2). Calculate the difference quotient
(f(-3+h)-f(-3))/(h) for
h=.1
h=0.1
h=−0.1
h=−.1
If someone now told you that the derivative (slope of the tangent line to the graph) of f(x) at x=−3 was (−1)/(n^2) for some integer n what would you expect n to be?
n=